420A turboing my 420a

[97EagleTalon2nr]

Alright guys, to start off I have researched the n/t to turbo forum thouroughly and have read all of the tech articles dealing with turbo'd 420a's but i havent really gathered all i need to know. I am lookin to piece together my own kit with all new parts. Here is the list i have come up with so far, please feel free to tell me anything i have forgotten, or overlooked

custom ss exhaust mani
t3/t4 turbo
downpipe
oil line kit
greddy type S blow off valve
Front mount intercooler
Intercooler piping SILICONE couplers and clamps for IC piping
missing link or FCD
vortech 12:1 fuel management unit
walbro 255lph High pressure fuel pump
random bolts washers and nuts
vaccum hose
fuel hose
various tee's and fittings
autometer boost gauge
autometer a/f gauge
autometer gauge pod
VooDoo manual boost controller
DP gasket
crankcase filter
upper rad. hose heat shield
heat deflector(Hood)
exhaust wrap(dp)


ALright here it goes, Should i recirculate my BOV back into the engine? where should i get my boost source for the FMU, and the boost gauge?How much whp should i expect to see untuned on a fresh stock rebuild(estimatesI was thinking of running 6-8 daily PSI , is this safe?

I should start piecing together my kit in a month or so, just want to get some questions out of the way first, im sure many more will pop up, thanks, Brian

 

[VelocitàPaola]

ALright here it goes, Should i recirculate my BOV back into the engine? where should i get my boost source for the FMU, and the boost gauge?How much whp should i expect to see untuned on a fresh stock rebuild(estimatesI was thinking of running 6-8 daily PSI , is this safe?

You don't need to recirculate your BOV like the turbo DSMs. Some say that it helps the turbo stay spooled, but it's entirely up to you. Most 420As with turbos don't recirculate simply to reduce fabrication complications.

The FMU and BOV should ideally come from either the PCV or brake booster lines. The boost gauge can come from pretty much anywhere (look in the back of your intake manifold -there's three vacuum ports there- you can tee off any of those).

6-8 psi daily is pretty safe, especially if you've just rebuilt, since your compression will probably be closer to factory spec than most others'. With that amount of boost you can expect anywhere from 170-220 whp. It depends on a few more variables other than boost alone.

Also, I wouldn't recommend the boost controller or A/F gauge. If you want the controller, and you have the money, then go for it, but it won't be needed until you rebuild with forged internals.

As for the A/F gauge, it'll only serve as a little LED light show. If you want something you can tune with, get a wideband, or even Corbin's digital A/F.

 

[VelocitàPaola]

You're missing an air filter element, IC piping, and gaskets from your list.

 

[97EagleTalon2nr]

thanks for the reply, IC piping is on the list, maybe you over looked it, and i also forgot to include that the auction with the turbo,mani,bov,oil line kit,dp also comes with the mani gasket, and the turbo gasket, where can i find a gasket for the DP? and i have an air filter element, also the auction includes the piece of pipe to clamp the filter to

 

[97EagleTalon2nr]

also if i do get the MBC where would i need to get the source from, you said i needed to get FMU or BOV from the brake booster line, is this the one that runs from upper intake to the brake booster?Also you said i can get the source for the boost gauge from the intake manifold, upper or lower?I do not need anything for the BOV since i don't plan or recirucalting it, correct? Thats it for now

 

[DSMcrazy3]

Most 420As with turbos don't recirculate simply to reduce fabrication complications.

Dude, you left out and because it totally sounds better

Just a hunch, but from the parts you're describing you're looking at this kit...(which I recommend)
http://cgi.ebay.com/ebaymotors/DOHC...036848240QQcategoryZ33742QQrdZ1QQcmdZViewItem

If that is the kit you're looking at, one thing to know is that isn't a real Greddy Type-S blow off valve...Simply a knock off.

Another thing, you don't have to, but I would recommend upgrading the oil lines to Stainless Steel braided, atleast for the oil feed supply...It will clost alittle bit more, but look better and be a bit more safe. Send 99GST_Racer(Paul)a PM, he sells the loil lines, that's who I bought mine from, great guy!.

About recirculating the BOV, one way I've heard it put that has stuck with me is that the air from the BOV to the turbo is a "push in the right direction"

Goodluck with you're process.

 

[97EagleTalon2nr]

I am def. not recirculating if i dont get hte cool WOOSH sound between shifts, you are right thats the kit im looking at, it being a knock off doesnt really bother me, i just want new parts, im anal like that, how much does paul sell the SS oil feed kit for?if i wasnt so lazy i'd pm and ask thanks for ## replies

 

[DSMcrazy3]

also if i do get the MBC where would i need to get the source from, you said i needed to get FMU or BOV from the brake booster line, is this the one that runs from upper intake to the brake booster?

I don't know what you mean by upper intake... The brake booster line is the line on the right. It's right after the throttle body, and the hose itself goes down to the right to yes, the brake booster.

For a MBC... On the compressor housing of the turbo, going to the wastegate actuator there will be a hose. Simply cut the hose and place the MBC in between. I'll give you a pic of how I did mine..Pretty simple concept, and it's a great harness for it as well.

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Also you said i can get the source for the boost gauge from the intake manifold, upper or lower?

On the left hand side of the manifold, there will be 3 vacuum ports very close together to form a \l/ shape, use any of those for the vacuum for the boost gauge...here's a pic of those ports..The middle one(depending on trim level and car features may or may not be capped off.) it is the vacuum source for cruise control, therefore, mine is capped off..

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I used the left one for(FPR) for my FMU, the right one(EGR) for my Boost gauge, and the Brake booster line for my BOV.

I do not need anything for the BOV since i don't plan or recirucalting it, correct?

Correct...If you were to recirculate it, you would just need a bung the size of the BOV outlet welded to the pipe with the intake filter on it, near the turbo, then connect a hose from the BOV to that bung.

 

[DSMcrazy3]

You would still get the sound. just not quite as loud..

I'm thinking of eventually fabbing up a metal recirculation tube for mine, to see if it helps, and if it's still pretty loud.


I really don't remember how much I paid for my oil feed lines..Prob $20-30..I just don't remember how much..While you're at it, go ahead and get your IC pipes from him(just get U-bends of whatever diameter you want, and cut/have them welded to fit)

 

[97EagleTalon2nr]

i was planning on getting a universal kit because he wants 650$ for his FMIC and IC piping kit ,I might get both if he will sell the turbo kit and the intercooler kit for say, 1400-1600 together? i will make an offer when i get closer to purchasing the parts ive heard he does high quality work and is a very good guy.You said i need a bung the size of the BOV and i need to run a hose from the bung to the bov, doesnt hte BOV bolt up on the IC piping? or were you saying i could do this instead of bolting it to the IC piping(to avoid finding a greddy style flange and welding it on?

 

[97EagleTalon2nr]

im also guessing i will need a heat sleeve for upper radiator hose, and a crankcase filter also, more money out of my pocket

 

[DSMcrazy3]

No no, no matter what you will have to get a flange welded to the IC pipe so that you can bolt the BOV to the pipe..

To recirculate it, you will need to get a bung, or a stubby peice of small diameter pipe welded to the intake pipe for the turbo, so that you can hook a hose up from the BOV to the intake pipe, to literally recirculate the air.

 

[DSMcrazy3]

im also guessing i will need a heat sleeve for upper radiator hose, and a crankcase filter also, more money out of my pocket

You'll need them both, won't be too expensive though.

I don't have a heat sleeve on mine, and I've been fine. I should get one though. I would get exhaust wrap also, and wrap your downpipe in that

 

[VelocitàPaola]

I made this diagram for you to see how the BOV dump tube connects to the intake. It's probably uneeded, but I just wanted to use CAD.

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[Blitzeclips]

that diagram is AWESOME! way more informative then explanation...

 

[VelocitàPaola]

Hehe. Thanks, this is my catch-all diagram, I'm gonna start bustin' it out whenever I need to show someone something on a 420A-turbo.

 

[97EagleTalon2nr]

sweet diagram

 

[97EagleTalon2nr]

alright i know this thread is like dead but i consider this my turbo thread so i dont have to start a new one if thats okay with everyone, ive got about 400 dollars so tommorrow i was planning on ordering the fmic,fmu,and walbro can i install the fmu and walbro without hrting anything, and will it still run right, i know im installing the fmic before i turbo, call me a ricer... but ill only have a weekend to turbo and getting that stuff out of the way will help,the funds for this is coming from a fixer upper im selling after i get a hg and bumper for it, which i have set aside 300 for, then after i find the buyer, im gonna get the streetsource kit and all the other stuff i need as soon as i get the cash.and one more question will it be a problem to install ic piping with the bumper on with the fmic mounted?or can this not be done?

 

[VelocitàPaola]

You can install the Walbro and FMU on your otherwise stock car without any ill effects.

You can also install the FMIC; but the IC piping is a little more difficult to do without a turbo because it all depends on how the turbo is oriented. If anything, you can make the LICP that connects the FMIC to the throttle body - when you're done making it, just take it out and put the stock intake back in for the time being. Taking IC piping in and out should take more than five minutes once you've cut and assembled it for the first time.

 

[XMasta19]

you could also run a fmic intake ...run from your throttle body to the intercooler than filter the other side hahhaah. i'm an idiot

 

[DSMcrazy3]

Better yet, why don't you mount the FMIC, get everything figured out that you will need to do to make it fit properly, then take it off until you're ready to put the turbo on. It will be about 20 minutes added to the project(max) the day you go to do everything.

That way you won't worry about being called a ricer and more importantly, won't have to worry about if any rock were to fly up and damage that intercooler that doesn't have to be there. God forbid you got in a wreck and totally F it up. Trust me, it's just better that way.

On another note, in no way do you need to apologize for using this thread. I and many others including Ludachris I'm sure appreciate you not feeling the need to go start a new thread for something you already have one going about.

 

[napkinthief]

Im a ricer

I had my boost gauge, fmu and walbro in at least 4 months before I even had an intercooler or manifold. I got the intercooler and pipes last week, and mounted those too. People already think I have turbo in my area. I will finally be done with this thing tommorrow......I hope. Check out the other thread I made "installation of my turbo stuff", lots of information there, and I just put up some fmic and piping pictures.

 

[DSMcrazy3]

Those are fine to install before hand. They still function and serve a purpose. Having an intercooler mounted, not being used is just silly because of the fact that it puts it in danger it doesn't have to be in at that time.

 

[97EagleTalon2nr]

alright thanks guys, ya i was gonan fab the TB to the IC outlet and then put my CAI back on till i was ready for it all,i was plannin on doing the intercooler,that one pipe,fmu,and fuel pump a few weekends b4 the other stuff to save time since ill only have a weekend to do it on and its my daily driver, ill let u kno if i have any more questions again thanks alot

 

[97eclipsesleepr]

that sounds good, as a few others said i had my IC and FMU and gauges as well as my AFc in for a while before i turboed my car, 6-8 pound sis good for DD i run 10 but i dont drive mine that much maybe 30miles a week if that, and i dont get on it to much as well car hasent seen over 5krpm. But ied say it sounds like your on your way to a good setup. Ive got a few buddys down towards Maynardville way, about 30-45 mins south, if you need any help just shoot me a PM and ill let ya know when im down that way.
joe